Sack needle



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C. C). SCHULZE SACK NEEDLE Filed Dec. 19, 1922 Flca. l.

FIG. 7.

f FIG. 6.

@Woman/1 Patented Agar. lli, T1926.

UNETED CLEMENCE O. SCHULZE, 0F BURLEY, IDAHO.

SACK NEEDLE.

Application filed December 19, 1922. Serial No. 607,782.

To all 'whom t may concern:

Be it known that I, CLnMnNon O. Sorrunzn, a citizen of the United States of America, residing at Burley, in the county of Cassia and State of Idaho, have invented certain new and useful improvements in Sack Needles, of which the following is a specification.

This invention relates to certain new and useful improvements insack needle and has particular reference to a needle adapted for sewing sacks or cloth bags with the eye portion of the needle being constructed in a .manner to permit easy and quick threading of the needle.

The primary object of the invention has particular reference to a sack or bag sewing needle wherein the eye portion embodies resilient side arms carried by the body portion of the needle and wherein the outer ends of the arms are normally closed to provide a retaining eye for the thread.

A further object of the invention embodies in. the eye construction of a needle as above set forth, having the contact faces of the outer ends of the arms formed with interengaging parts with the thread or sewing cord inserted between the outer ends of the interengaging parts to permit free passage to the eye of the needle.

With the above general objects in view and others that will appear as the nature of the invention is better understood, the same consists of the novel form, combination and arrangement of parts hereinafter more fully described. shown in the accompanying drawing and claimed.

In the drawing,'wherein like reference characters designate corresponding parts throughout the several views,

Figure l is a side elevational view of a sack or bag sewing needle constructed in accordance with the present invention showing initial position of the thread or cord during the threading operation of the needle,

Figure 2 is a view similar to Fig. l showing the position of the thread or cord threaded into eye opening of the needle,

Figure 3 is a view similar to Figs. l and 2 showing the position of the thread when the same is to be removed from the needle,

Figure 4 is a fragmentary side elevational viewpartly in section of the eye end of the needle showing the tongue and groove between the adjacent faces of the outer ends of the arms surrounding the eye opening of the needle,

Figure 5 is a fragmentary side elevational View, similar to Fig. 4 showing the position assumed by the side arms of the needle eye when a cord or thread is forced therebetween during the threading operation of the needle,

Figure 6 is a fragmentary edge elevational view of the eye end of the needile, and

Figure 7 is an end elevational view of the needle.

The sack or bag sewing needle disclosed in this application vembodies a central body portion l of circular or oval formation in cross section that carries a bag entering or pointed end 2 of diamond shape in cross section, while the opposite end of the central body portion l carries the eye and threading section of the needle.

The eye section of the needle is formed by the provision of a pair of resilient side arms 3 and 4 spaced to provide a thread receiving eye 5 with the outer end of the eye 5 closed by shoulders 6 and 7 carried respectively, by the side arms 3 and 4. As shown in Fig. 4, the shoulders 6 and 7 contact over the major portions of their lengths while the outer ends thereof are curved outwardly at at 8 and merge int-o the outer' sides of the resilient side arms 3 and 4 to provide a terminal substantially V-shaped recess in the end of the needle for receiving the cord or thread during the threading operation. To provide for an interlocking engagement between the shoulders 6 and 7, and also to prevent accidental displacement of the thread from the eye 5 of the needle, the inner face of the shoulder 6 carries a rib or tongue 9 that is received in a groove l0 formed in the adjacent contacting face of the arm shoulder 7 as clearly shown in Figs. 4 and 5, the shoulders 6 and 7 being maintained in intimate Contact with each other' by the resiliency of the side arms 3 and 4.

During the threading operation of the needle, the thread T is placed is the position shown in Fig. l in contact with the curved ends 8 of the shoulders 6 and 7 and by pulling inwardly upon both strands of the thread T, the shoulders 6 and 7 carried by the resilient arms 3 and 4 are forced apart as shown in Figo, permitting `the passage of the looped end of the thread T between the arm shoulders G and 7 and into the eye 5, said thread then assuming the' position yremoved from the needle.

shown inFig. 2, the strain upon thc thread during the sewing operation beingL placed upon the inner edges of the arm shoulders G and 7. If it is desired to unthread or remove the thread T from the needle, one strand of the thread is placed in the position shown in Fig. 3, and by pulling in the direction of the arrow the thread is forced ybetween the arm shoulders 6 and 7 to displace the rib or tongue 9 from the groove l() and permit the looped portion of the thread to be received inthe needlefeye 5 and thereafter completely lt will be lnoted that the resiliency of the arms 3 and l maintains intimate contact between the arm shoulders 6 and 7, land bythe provision of the tongue and groove connection 9v and 10 lateral movement `of said shoulders is eliminated, Also. the curved outer-ends 8 of the yarm shoulders 6 and 7 provide .for the correct positioning of the thread T during the threading operation ofthe needle, attention being called-to the fact that the thread is introduced into the leye 5 of theneedle from the terminal end of the needle, or, in

other words, the looped portion of the thread as shownv in Fig. 1 is moved axially ofthe needle to place the thread in the eye portion thereof, and in this position, the looped porti-on of the thread engages'either of the shoulders G or 7 during the se-wino' opleration, `andfshould said thread during said sewing operation, be positioned directly between the arm shoulders 6 and 7, the strain willy be taken up by the adjacent ends of the tongue and groove 9 and 10.

virile there is hereiirslwwn and described the preferred embodiment of the present invention, it is nevertheless to be understood that minor changes may be made therein without departing from the spirit and scope thereof. l

lVhat is claimed as new is lira needle of .the type described, an elongated body portion pointed at one end and having a pair of spaced resilient arms at its opposite end, alined engagingedge abutting shoulders carried by the adjacent sides of the outer ends of said arms, said shoulders being elongated in the direction of the length of said bot y portionwith their outer ends tapered voutwardly to form a shoulder wedging thread socket and with their inner ends squared to resist.anythread wedgingiaction,

-the space between the resilient arms inwardly of the shoulders constituting an eye portion, and a connection between the full lengths of the contacting edge faces of said `shoulders including a tongue centrally earried by the contacting edgeface of oneshoulder, and the opposite shoulder being formed with a central groove cooperating ai'iththe tongue, said connection being broken by amoVement ofthe shoulders in the direction of their common central plane with said shoulders remaining in the same plane and with the thread extending at lright an- E`gles to said central plane during insertion thereof into the eye portion of the needle.

ln testimony Vwhereof I afliX my signature.

CLEMENCE O. SGHULZE. 

